AreaConfig = function(){
	
	this.selectAreas={
	   xtype:'multicombo',
	   store: $dataStore.get('showArea'),
	   displayField: "text",
	   valueField :"code",
	   mode: 'local',
	   value:'CD',
	   hiddenName:'showArea',
	   triggerAction: 'all',
	   emptyText:'请选择...',
	   displaySeparator:';',
	   valueSeparator:'',
	   labelSeparator:'：',
	   fieldLabel: 'multi-comBo',
	   forceSelection: true,
	   editable: false,
	   allowBlank:true
	};
	
	this.panelConfig = {
		items :[this.selectAreas]
	};

};

var areaConfig =new AreaConfig();

var formPanel = new Ext.FormPanel(areaConfig.panelConfig);

Ext.onReady(function(){formPanel.render("multicombo-div");});